I'm building an 8-bit digital integrator that will...well... do the same thing an analog integrator does... integrates! I'm only allowed to use discrete parts, with the exception of: an ADC on the front and a DAC on the back. I am having a great deal of difficulty finding literature pertaining to the subject. I know how an analog integrator works, but I'm having a little trouble figuring out how to apply this to the discrete field. Where do I start?